{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:53HN6SBI7XVVXLTFPWWHHANQ6I","short_pith_number":"pith:53HN6SBI","canonical_record":{"source":{"id":"cond-mat/9810353","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"1998-10-26T23:10:41Z","cross_cats_sorted":[],"title_canon_sha256":"41ac1ae0a76ba35a009136b66719a3a2d02b486b0a50adb0b54568c283cdd17b","abstract_canon_sha256":"d819e10233e895ad17703d3c2bf7efd73fc0cf5c5f81756a0a7c7e7937d09b4a"},"schema_version":"1.0"},"canonical_sha256":"eecedf4828fdeb5bae657dac7381b0f205abaf9206183ccb8919c2c763755b45","source":{"kind":"arxiv","id":"cond-mat/9810353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9810353","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9810353v1","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9810353","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"pith_short_12","alias_value":"53HN6SBI7XVV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"53HN6SBI7XVVXLTF","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"53HN6SBI","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:53HN6SBI7XVVXLTFPWWHHANQ6I","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9810353","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"1998-10-26T23:10:41Z","cross_cats_sorted":[],"title_canon_sha256":"41ac1ae0a76ba35a009136b66719a3a2d02b486b0a50adb0b54568c283cdd17b","abstract_canon_sha256":"d819e10233e895ad17703d3c2bf7efd73fc0cf5c5f81756a0a7c7e7937d09b4a"},"schema_version":"1.0"},"canonical_sha256":"eecedf4828fdeb5bae657dac7381b0f205abaf9206183ccb8919c2c763755b45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:27.251739Z","signature_b64":"oVfPIlBdr34K2c3ujabqNl1Uc4S7TLiBmcY6WmbSVWvnqsqU4We7wTCR2nAfw6lyDanlL2uopf+Awlb9g4IOBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eecedf4828fdeb5bae657dac7381b0f205abaf9206183ccb8919c2c763755b45","last_reissued_at":"2026-05-18T01:00:27.251191Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:27.251191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9810353","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:00:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i2+IU8grAFpW6//3f2FwMXl4SsmsLjDIflHe78b1gS6RTAWQtwAXKTZJLkP/hEZQcH77yI98woglOuXPCX+ACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:13:15.897125Z"},"content_sha256":"12099538f305771d4de96b46e12dcfeb508a6d3338c53f4a0aa72ce241730312","schema_version":"1.0","event_id":"sha256:12099538f305771d4de96b46e12dcfeb508a6d3338c53f4a0aa72ce241730312"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:53HN6SBI7XVVXLTFPWWHHANQ6I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Environments: Spin Baths, Oscillator Baths, and applications to Quantum Magnetism","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat","authors_text":"P.C.E. Stamp","submitted_at":"1998-10-26T23:10:41Z","abstract_excerpt":"The low-energy physics of systems coupled to their surroundings is understood by truncating to effective Hamiltonians; these tend to reduce to a few canonical forms, involving coupling to \"baths\" of oscillators or spins. The method for doing this is demonstrated using examples from magnetism, superconductivity, and measurement theory, as is the way one then solves for the low-energy dynamics. Finally, detailed application is given to the exciting recent Quantum relaxation and tunneling work in naomagnets."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9810353","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:00:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xNbyURstyeyX2LSlZCphcJvdK8Wq6O2WDIIks7KyX7svSLUv/nkcXYMZrUyo4JKjpwj+acZu7qL0xvHkWqzfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:13:15.897505Z"},"content_sha256":"e5b739d6532dd5a72e295a0f7dabdf5882df5b0352ea0a8118f7424c80a27064","schema_version":"1.0","event_id":"sha256:e5b739d6532dd5a72e295a0f7dabdf5882df5b0352ea0a8118f7424c80a27064"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/53HN6SBI7XVVXLTFPWWHHANQ6I/bundle.json","state_url":"https://pith.science/pith/53HN6SBI7XVVXLTFPWWHHANQ6I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/53HN6SBI7XVVXLTFPWWHHANQ6I/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-11T13:13:15Z","links":{"resolver":"https://pith.science/pith/53HN6SBI7XVVXLTFPWWHHANQ6I","bundle":"https://pith.science/pith/53HN6SBI7XVVXLTFPWWHHANQ6I/bundle.json","state":"https://pith.science/pith/53HN6SBI7XVVXLTFPWWHHANQ6I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/53HN6SBI7XVVXLTFPWWHHANQ6I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:53HN6SBI7XVVXLTFPWWHHANQ6I","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d819e10233e895ad17703d3c2bf7efd73fc0cf5c5f81756a0a7c7e7937d09b4a","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"1998-10-26T23:10:41Z","title_canon_sha256":"41ac1ae0a76ba35a009136b66719a3a2d02b486b0a50adb0b54568c283cdd17b"},"schema_version":"1.0","source":{"id":"cond-mat/9810353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9810353","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9810353v1","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9810353","created_at":"2026-05-18T01:00:27Z"},{"alias_kind":"pith_short_12","alias_value":"53HN6SBI7XVV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"53HN6SBI7XVVXLTF","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"53HN6SBI","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:e5b739d6532dd5a72e295a0f7dabdf5882df5b0352ea0a8118f7424c80a27064","target":"graph","created_at":"2026-05-18T01:00:27Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The low-energy physics of systems coupled to their surroundings is understood by truncating to effective Hamiltonians; these tend to reduce to a few canonical forms, involving coupling to \"baths\" of oscillators or spins. The method for doing this is demonstrated using examples from magnetism, superconductivity, and measurement theory, as is the way one then solves for the low-energy dynamics. Finally, detailed application is given to the exciting recent Quantum relaxation and tunneling work in naomagnets.","authors_text":"P.C.E. Stamp","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat","submitted_at":"1998-10-26T23:10:41Z","title":"Quantum Environments: Spin Baths, Oscillator Baths, and applications to Quantum Magnetism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9810353","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:12099538f305771d4de96b46e12dcfeb508a6d3338c53f4a0aa72ce241730312","target":"record","created_at":"2026-05-18T01:00:27Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d819e10233e895ad17703d3c2bf7efd73fc0cf5c5f81756a0a7c7e7937d09b4a","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"1998-10-26T23:10:41Z","title_canon_sha256":"41ac1ae0a76ba35a009136b66719a3a2d02b486b0a50adb0b54568c283cdd17b"},"schema_version":"1.0","source":{"id":"cond-mat/9810353","kind":"arxiv","version":1}},"canonical_sha256":"eecedf4828fdeb5bae657dac7381b0f205abaf9206183ccb8919c2c763755b45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eecedf4828fdeb5bae657dac7381b0f205abaf9206183ccb8919c2c763755b45","first_computed_at":"2026-05-18T01:00:27.251191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:27.251191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oVfPIlBdr34K2c3ujabqNl1Uc4S7TLiBmcY6WmbSVWvnqsqU4We7wTCR2nAfw6lyDanlL2uopf+Awlb9g4IOBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:27.251739Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9810353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12099538f305771d4de96b46e12dcfeb508a6d3338c53f4a0aa72ce241730312","sha256:e5b739d6532dd5a72e295a0f7dabdf5882df5b0352ea0a8118f7424c80a27064"],"state_sha256":"c4cedcb6c556062711dd4fe28869c28a3cdb4932e92806dddd255294c84624fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EmyeR7G3dl7DwN4mqzmNkhc8+UIKrVEwKAZz0Z6uBm4PJSSH6r3g8Z7pSFhTRAqyKtk8fV78QxWjiel8upydAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T13:13:15.901128Z","bundle_sha256":"7e99474f04a2d97b914d8b2c9487c8aefdd73ac3a99c4435755938f06c21764d"}}